Variation in Mastectomy Rates for Breast Cancer in the UK
Author Information
Author(s): Caldon L J M, Walters S J, Reed J A, Murphy A, Worley A, Reed M W R
Primary Institution: The University of Sheffield
Hypothesis
Does variation in surgical practice for breast cancer persist after adjusting for case-mix?
Conclusion
Significant variation in mastectomy rates exists across breast screening units, which is not explained by case-mix factors.
Supporting Evidence
- The study found a mastectomy rate of 35.8% across the Trent region.
- Mastectomy rates varied significantly between units, ranging from 25% to 45%.
- The analysis adjusted for factors like tumor size and patient age but still showed variation.
Takeaway
Different hospitals in the UK perform mastectomies at very different rates, and this can't just be explained by the types of patients they treat.
Methodology
The study analyzed individual patient-level data from the Trent Breast Screening Programme using logistic regression to assess mastectomy rates.
Potential Biases
Potential biases due to the use of a single region's data and the exclusion of non-screen-detected cases.
Limitations
The study only includes screen-detected breast cancers and may not represent the broader population.
Participant Demographics
The majority of participants were women aged 50-64 with small tumors.
Statistical Information
P-Value
<0.0001
Confidence Interval
95% CI: 34.5–37.1%
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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